Fat-cutter.



B. A. TYLER.

FAT cuma. APPLICATION FILED NOV- 3, I916. RENEWED AUG- 24, I918.

1,294,203, I Patented Feb. 11, 1919.

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a gn vewboz B. A. TYLER.

FAT CUTTER.

APPUCATION man NOV-3,1916. RENEWED AUG. 24, 1918 Patented Feb. 11, 1919.

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FAT CUTTER.

APPLICATION FILED Nov, 3, I916. RENEWED AUG. 24,

Pateniied Feb.l1,1919.

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BURTON A. 'IYLER,-OF CAMBRIDGE, ILLINOIS.

FAT-CUTTER.

Specification of Letters Patent.

Patented Feb. 11, 1am.

Application filed November 3, 1916, Serial No. 129,364.' Renewed August24, 1918. Serial No. 251,338.

To all whom it may concern:

Be it known that I, BURTON A. TYLER, a citizen of the United States,residing at Cambridge, in the county of Henry and State of-Illinois,have invented certain new and useful Improvements in Fat-Gutters, of

which the following is a specification.

This invention relates to new anduseful improvements in fat cutters forcutting up the fat of hogs and cattle preparatory to treating the samein rendering kettles.

The primary object of this invention is to provide a machine of thischaracter which will greatly facilitate this work.

A further object of the invention is to provide a machine of thecharacter specified which is comparatively simple and economical inconstruction, efficient in operation, and in which the parts may bereadily assembled or disassembled.

With the foregoing and other objects in view that will appear as thenature of the invention is better understood, the same consists in thenovel features of construction, combination and arrangement of partsillustrated in the drawings and more particularly pointed out in theappended'elaims.

In the accompanying drawings Figure 1 is a central vertical longitudinalsection of a machine embodying my improvements. V

Fig. 2 is a vertical transverse section taken on the plane indicated bythe dotted lines 2-2 of Fig. 1, looking in the direction indicated bythe arrows.

Fig. 3 is a similar view, taken on line 3-3 of Fig. 1, looking in thesame direction.

Fig. 4 is a partly plan and partly horizontal section of the left-handend of the machine. T i

Fig. 5 is a detail sectional view on line 55 of Fig. 4, looking inthe'direction indicated by the arrows.

Fig. 6 is a detail fragmentary plan view of one of the knife supportingbars.

Fig. 7 is a transverse sectional view, taken on line 77 of Fig. 6.

Fig. 8 is a central vertical longitudinal section, partly in elevation,illustrating a modified form of the invention.

'Fig. 9 is a vertical transverse section taken on line 99 of Fig. 8,looking in the direction indicated by the arrows.

Fig. 10 is a similar view, taken on line 101O of Fig. 8, looking in thesame directiona V,

Fig.11 is a partly plan and partly hori zontal sectional view of theform of machine shown in Fig. 8 and Fig. 12 is a detail sectional viewon line 1212 of Fig. 11.

Referring to the drawings for a more particular description of theinvention and which drawings are for illustrative purposes only andtherefore not drawn to scale, the machine comprises a substantiallyrectangular oblong casing 1 provided with an outwardly flared mouth 2and open bottom 3, the purpose of which is apparent. The right hand endwall as l, of the casing is also provided with a removable plate 5 whichis held in place by the screws 6 or other equivalent means and whichfacilitates the introduction or removal of the knife carrying cylinderand associated parts.

The knife carrying cylinder 7 which is arranged or disposedlongitudinally in the casing and extends the full length of themachineis provided at opposite ends with the reduced bearings 8 and 9,which are journaled in bosses 10 and 1 1 formed, respectively, with-theend wall 12 at the left hand end of the machine and the removable endplate 5.

i The bearing-9 of the cylinder projects beyond the end plate 5 and hasapplied thereto the crank handle 15 for turning or rotating thecylinder, and the latter is held against endwise movement and the crankhandle held in place by the thumb screws 13 and 1 1 which screw intocorresponding interiorly threaded openings in the cylinder.

' In carrying out the invention, the cylinder is provided throughoutits'length with a pair ofcorresponding longitudinal dovetail grooveswhich are disposed diametrically opposite each other and receive theknife supporting bars 16. Said bars 16, which are also of dovetail formin cross section, are formed with flat inner faces 17 andarcuate outerfaces 18 which lie flush and conform with the curvature of the outersurface of the cylinder, as shown.

Each knife bar is provided throughout its length with a series oflongitudinally spaced cutting knives 19 formed with cuttlng edges 20,said knives being of fiat substantlally rectangularoblong form andarranged n endwiseor perpendicular relation with sald knife bars andcylinder. Said cutting lmives are removably secured to the knife bars bythefollowing means. Each knife is provided at its inner end adjacent thecutting rectly opposite each other.

edge 20 thereof with an inwardly projecting threaded stem 21 whichpasses through a corresponding transverse aperture 22 in the knife barand is also provided at said end behind said stem with 2. lug 23 whichfits in a corresponding socket 24 in the latter and holds the knifeagainst turning in the arc of a circle in either direction with the stemas a pivot, the sockets 24 being arranged in the outer faces of theknife bars behind and in transverse alinement with said apertures 28.

Nuts 25 screw on the outer ends of the stems 21 against the inner orbottom faces of the knife bars to hold or secure the cutting knives' inremovable position.

Each series of cutting knives are arranged in alinement or diametricallyopposite those of the other series and the knife bars are removablysecured to the cylinder by the fastening screws 26.

The machine further comprises a pair of slicing knives 27 which extendlongitudinally of the machine and at right angles with the cuttingknives 19, said slicing knives extending approximately the entire lengthof the casing and being disposed di- The slicing knives, which are ofcurved or arcuate form in cross-section, are removably secured to thecylinder 7 in spaced relation therewith, by the end and center supports28 and 29, respectively, which are secured to the cylinder at rightangles with the cutting knives. The end supports 28, which are in theform of flat metal strips, are secured at their inner ends by the screws30 or other equivalent means, to the ends of the cylinder 7 and areprovided at their outer ends with the inwardly and right angularly bentportions 31 which are removably secured to the ends of the slicingknives. The center supports 29, which are of tapering form incross-section and provided with cutting edges 32 to prevent clogging,are provided attheir inner ends with threaded stems 33 which screw intocorresponding sockets in the cylinder and have secured to their outerends by screws 34 or other equivalent means the slicing knives 27.

The casing 1 is provided upon the inner surface of one side wall, as 35,thereof with a series of longitudinal vertically spaced cutting ribs 36which cooperate with the slicing knives 27 in cutting or reducing thefat into fine particles.

In the modification illustrated in Figs; 8 to 12, inclusive, of thedrawings, the knife supporting cylinder 7 is formed of a series oflongitudinally spaced cylindrical sections 37, each section being formedor provided at one end with a pair of transverse oppositely disposedspaced V-shaped projections 38 which fit in corresponding grooves in theadjacent section and whereby the respective sections are interlockedwith each other and held together as a unit against relative turningmovement. The cylinder sections are provided each with a central bore oropening 40 to receive a supporting shaft 41 which extends longitudinallythroughout the. entire length of the machine and is threaded at oppositeends, as at 41, for;threaded engagement with the tubular bearing sleevesor nuts 42 formed preferably with hexagonal heads 48 which fit betweenthe inner faces of the end walls of the casing and the outer ends of theend sections 37 of the knife supporting cylinder and hold the former incontact and secure interlocking engagement.

In this form of the invention, I dispense With the knife bars 16 andknife supporting means shown in Figs. 1 to 7, inclusive, and form eachpair of upper and lower or transversely opposite cutting knives 19 froma single bar or piece, as 44, by forming this bar at opposite ends anddiagonally opposite edges with cutting edges 45 and 46. The bars 44 areprovided with central openings or apertures 47 and are threaded on theshaft 41 between the cylinder sections 37 which are formed in one endwith transverse recesses 48 to receive'said bars and whereby thecylinder sections are permitted to fit in contiguous relation. 5

Also, in this form the end supports at each end of the machine areformed in one piece or bar, as 49, said bars extending across the endsof the cylinder at right angles to the plane thereof with theintermediate portions fitting in transverse recesses 50 in the outerends of the end sections of the cylinder.

The center supports are also formed in one 5 bar or piece, as 51, whichalso extends across the cylinder at a point centrally or approximat-elycentrally of the length therof, with its intermediate portion fitting ina corresponding transverse recess 52 formed in one end of the adjacentcylinder section at right angles to the knife bar receiving recess 48 inthe opposite end thereof. It is thought that the form of machineillustrated in Figs. 8 to 12, inclusive, and last described will becheaper or more economical 111 construction and equally as eflicient inoperation as the form. shown in Figs. 1 to 7 inclusive.

While my machine is primarily designed as a fat cutter, I claim theright to use the same for cutting or reducing meat or other substancesinto fine particles.

Various changes in the. form, proportions and minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the 'advantages of,

this invention as defined in the appended claims.

Having described my invention, what I claim as new and desire to secureby Letters Patent, is i 1. A machine of the character specifiedcomprising a casing, a knife carrying cylinder revolubly mountedtherein, one or more series of longitudinally spaced cutting knives,removably secured to said cylinder, means for rotating the latter, oneor more slicing knives removably secured to said shaft in spacedrelation therewith and at right angles with the plane of the cuttingknives and a series of longitudinal vertically spaced cutting ribsformed on the inner face of one side wall of the casing and cooperatingwith the lmives in cutting or reducing the fat or other substance intofine particles.

2. A machine of the character specified comprising a rectangular oblongcasing, a knife carrying cylinder arranged longitudinally of andrevolubly mounted in said casing, knife carrying bars removably securedto the cylinder at diametrically opposite points, a series oflongitudinally spaced cutting knives removably secured to each knife barat right angles or in perpendicular relation with the cylinder, slicingknives arranged longitudinally of and extending the full length of thecasing in spaced relation with the cylinder, said slicing knives removablysecured to said cylinder at right angles with the plane of thecutting knives, means for rotating the cylinder, means for removablysecuring the slicing knives to the cylinder and a series of longitudinalvertically spaced ribs formed on one Wall of the cas ing and co-actingwith the cutting and slicing knives in reducing the fat or othersubstance into fine particles.

In testimony whereof I affix my signature in the presence of twowitnesses.

BURTON A. TYLER. Witnesses:

FAY PALMER, W. H. CoNsnR.

Gopies of this patent may be obtained for five cents each, by addressingthe Commissioner of .Patents,

' Washington, I). G.

